Dometic Duotherm Brisk Air Conditioner, Heat Pump, Penguin ...

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INSTALLATION INSTRUCTIONS DUCTED CCC 4. AIR DISTRIBUTION SYSTEM SIZING & DESIGN The Installer of this air conditioner/heat pump system must design the air distribution system for their particular application. Several requirements for this system MUST be met for the air conditioner/heat pump to operate properly. These requirements are as follows: A. The duct material must meet or exceed any agency or RVIA Standard that may be in existence at the time the RV is produced. B. All discharge air ducts must be properly insulated to prevent condensation from forming on their surfaces or adjacent surfaces during operation of the air conditioner/heat pump. This insulation must be R-7 minimum. C. Ducts and their joints must be sealed to prevent condensation from forming on adjacent surfaces during operation of the air conditioner/heat pump. D. Return air openings must have 40 square inches minimum free area including the filter. E. Return air to the air conditioner/heat pump must be filtered to prevent dirt accumulation on air conditioner/heat pump cooling surface. ! CAUTION It is the responsibility of the installer to insure the ductwork will not collapse or bend during and after the installation. Dometic Corporation will not be liable for roof structural or ceiling damage due to improperly insulated, sealed or collapsed ductwork. AIR DISTRIBUTION DUCT SIZING & DESIGN CHART Return Air Cover Model 3105007.XXX 3308120.XXX 3105935.XXX Genesis Air Filtration System Roof Cavity Depth 2.0 In. Min. - 5-1/2 In. Max. 2.0 In. Min. - 5-1/2 In. Max. Duct Cross Sectional Area 21.0 Sq. In. Min. 32.0 Sq. In. Min. Duct Size Depth 1-1/2 In. Min. - 2-1/2 In. Max. 2.0 In. Min. - 2-1/2 In. Max. Width 7.0 In. Min. - 10.0 In. Max. 8.0 In. Min. - 10.0 In. Max. Total Duct Length 15.0 Ft. Min. - 40.0 Ft. Max. 15.0 Ft. Min. - 40.0 Ft. Max. Duct Length (short run) 1/3 Total Duct Length 1/3 Total Duct Length Register Requirements Number Required Per Run 4 Min. 4 Min. Register Free Air Area 14.0 Sq. In. 14.0 Sq. In. Distance From Duct End 5.0 In. Min. - 8.0 In. Max. 5.0 In. Min. - 8.0 In. Max. Distance From Elbow 15.0 In. 15.0 In. Total System Static Air Pressure 0.55 - 0.90 In. W.C. 579 Series 0.55 - 0.90 In. W.C. 579 Series Blower at High Speed, 0.40 - 1.10 In. W.C. 590, 591, 595 Series 0.40 - 1.10 In. W.C. 590, 591, 595 Series Filter & Grill In Place 0.12 - 0.65 In. W.C. 600, 630 Series 0.12 - 0.65 In. W.C. 600, 630 Series Note: Duct sizes listed are inside dimensions. 6
INSTALLATION INSTRUCTIONS DUCTED CCC 5. AIR DISTRIBUTION SYSTEM INSTALLATION A. Dometic Corporation recommends the basic configuration shown on page 8 for installing this air conditioner/heat pump system. We have found through testing that this configuration works best in most applications of this air conditioner/heat pump system. It is the responsibility of the Installer of this system to review each RV floor plan and determine the following: 1. Duct size 2. Duct layout 3 Register size 4. Register location 5. Thermostat location These items must be determined in conjunction with the Air Distribution System and Sizing and Design Requirements listed in the chart on page 5. Important: Alternate configurations and methods may be used which still allow the air conditioner/heat pump to operate properly; however, these alternate configurations and methods must be approved by the Dometic Corporation in writing. The following instructions are based upon the use of Dometic 3105007.XXX Return Air Kits, 3105935.XXX Quick Cool Kits, or 3308120.XXX Genesis Air Filtration System. The 3109226.XXX and 3109407.XXX Comfort Control Center Kits have the mounting bolts supplied for use with these kits. B. ROOF AND CEILING OPENING PREPARATION 1. A 14-1/4" x 14-1/4" (±1/8") opening must be cut through the roof and ceiling of the RV. This opening must be located between the roof reinforcing members. ! WARNING There may be electrical wiring between the roof and the ceiling. Disconnect 115 volt AC power cord and the positive (+) 12 volt DC terminal at the supply battery. Failure to follow this instruction may create a shock hazard causing death or severe personal injury. 2. Mark a 14-1/4" x 14-1/4" (±1/8") square on the roof and carefully cut the opening. 3. Using the roof opening as a guide, cut the matching hole in the ceiling. 4. The opening created must be framed to provide adequate support and prevent air from being drawn from the roof cavity. Lumber 3/4" or more in thickness must be used. Remember to provide an entrance hole for power supply wiring and thermostat cable. 5. The 14-1/4" x 14-1/4" (±1/8") opening is part of the return air system of the air conditioner/heat pump and must be finished in accordance with NFPA Standard 501C Section 2.7. 6. Route a copper 12 AWG (max. length 24'), with ground, supply line from the fuse or circuit breaker box to the roof opening. a. This supply line must be located in the front portion of the 14-1/4" x 14-1/4" (±1/8") opening. b. The power supply MUST be on a separate 20 amp for models 579, 590, 591,59516, 600 and 630 series, and 15 amp for models 59528, 59529 and 59530 Series Time Delay Fuse or HACR Circuit Breaker. c. Make sure at least 15" of supply wire extends into the roof opening. This ensures easy connection at the junction box. d. Wiring must comply with all National, State and Local Wiring Codes. e. Use a steel sleeve and a grommet or equivalent methods to protect the wire where it passes into the opening. 7. See Section 6. Comfort Control Center, Remote Sensor and Cable Installation. 7
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Page 5: 2. PRECAUTIONS ! WARNING Improper i
Page 15 and 16: Installing unit with 3105007.XXX or

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